12.3 Market pull The alternative market pull model suggests that the stimulus for innovation comes from the needs of society or a particular section of the market (Figure 55). These might be needs perceived by an entrepreneur or manufacturer like Shaw and his cat's-eyes or they m
10.5 Desire to help others This is a less common motivation but it shows not everyone is driven by money. In 1991 the inventor Trevor Baylis saw a BBC documentary about the spread of HIV/AIDS in Africa. What was needed was a way of broadcasting the safe-sex message to people in areas without electricity and where batteries for a radio could cost a month's wages. Solar power wouldn't necessarily help as most people who could get to a radio listened in the evening after work. While absorbing this information he ima
1 People-centred designing